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Marquise|Natural|IGI

0.53ct I SI1 Marquise Natural Diamond

VG • I/SI1 • IGI 809631753

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 809631753

Diamond specifications and retailer prices

From $680 AUD
$478 USD
As of October 29, 2026
Save $898 AUD (57%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $2,607 AUD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 0.53ct natural marquise diamond

This 0.53ct natural marquise sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 809631753. Listed at 8 retailers as of October 29, 2026, with a 132% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.53
Carat
I
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.6°
Pavilion angle41.3°
OriginNatural
Grading LabIGI
CertificateIGI 809631753
Dimensions8.41 × 4.16 × 2.67 mm
L/W Ratio2.02
Girdle conditionFaceted
Top View
8.41 mm4.16 mm0.53 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 809631753
Side View
Table 64.0%Crown 36.6°Girdle: THN-MEDPavilion 41.3°CuletDepth 64.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $964 AUD|Low: $939 AUD|High: $1,589 AUD|Avg: $1,143 AUD|+2.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
November 2, 2026
Retailer 1$964 AUD
Retailer 4$1,005 AUD
Retailer 3$1,011 AUD
Retailer 2$1,578 AUD

20 data points across 4 retailers

8 retailers$680 AUD to $1,578 AUD

Retailer 1
-
$680 AUD
$478 USD
Price last confirmed 25 days ago
A
Retailer 2
-
$680 AUD
$478 USD
View
Retailer 3
-
$732 AUD
$514 USD
View
Price last confirmed 32 days ago
B+
Retailer 4
-
$964 AUD
€645 EUR
View
B+
Retailer 5
-
$1,005 AUD
$706 USD
View
B+
Retailer 6
-
$1,011 AUD
$710 USD
View
B
Retailer 7
-
$1,578 AUD
£873 GBP
View
Most Expensive
NZ Jewellers
ac6e7ac8-7495-414b-8ed1-8a7b366f8c53 · Sep 30
$2,607 AUD
$1,831 USD
View
Price last confirmed 33 days ago
7 more retailers have this diamond
Prices start from $680 AUDSave up to $898 AUD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
0.53ct Marquise
$680 AUD